| 1919-10 |
Maruzen Ironworks founded. |
| 1937-11 |
Name changed to Maruzen Ironworks Co., Ltd. |
| 1961-10 |
Head office premises completed. |
| 1963-12 |
Ichikawa Plant completed. |
| 1967-09 |
Name changed to Maruzen Co., Ltd. |
| 1970-12 |
Maruzen Keiyo Oil Terminal Completed. |
| 1971-06 |
Warehouse A completed. |
| 1971-09 |
Warehouse B completed. |
| 1971-09 |
Capital of Maruzen Co., Ltd., increased to 100 million yen. |
| 1972-04 |
Fujii, Inc., established. |
| 1985-10 |
Conversion of tanks and lines at Keio Oil Terminal for conformity to all-stainless steel specifications completed. |
| 1989-05 |
Keiyo Logistics Co., Ltd., established. |
| 1989-05-18 |
創業 |
| 1990-10 |
Maruzen Irios Co., Ltd., established. |
| 1996-10 |
ISO 9002 international standard certification for quality-assurance systems obtained for Maruzen Co., Ltd., (registration certificate no. NQA-9506025A). |
| 2003-11 |
ISO 9001 certification for quality-assurance management systems obtained for Maruzen Co., Ltd., (registration certificate no. NQA-0206025A). |
| 2004-03 |
General handling sites to accommodate ISO tank containers designed to enable special work on hazardous materials to be performed (including work that involves transferring hazardous materials out of drums, filling containers, dividing materials into smaller portions, and heating) opened. |
| 2004-04 |
An automated multi-tier warehouse for hazardous materials completed. |
| 2004-11 |
ISO 9001 certification for quality-assurance management systems obtained for Keio Logistics Co., Ltd., (registration certificate no. NQA-0206025A). |
| 2011-02 |
CDI-T (international examination standards) testing conducted on our tank terminal business. |
| 2011-05 |
Capital of Keio Logistics Co., Ltd., increased to 100 million yen. |
| 2016-01 |
Kashiwa Complex opened. |
| 2017-10 |
Quality management system has been transferred to ISO9001：2015. |
